Home / 30,438-62,747

Finding the Third Proportional to 30,438 and 62,747

Calculator

Solution

The third proportional to 30,438 and 62,747 is: 129,351.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438 : 62,747 = 62,747 : x
  2. Step 2: Convert to fraction form
    30,438/62,747 = 62,747/x
  3. Step 3: Cross multiply
    30,438x = 62,747 × 62,747
  4. Step 4: Simplify right side
    30,438x = 3,937,186,009
  5. Step 5: Solve for x
    x = 3,937,186,009/30,438
  6. Step 6: Final answer
    x = 129,351.01

Related Problems

Find third proportional to 15,219 and 31,373.50
Half scale
Find third proportional to 60,876 and 125,494
Double scale
Find third proportional to 30,440 and 62,751
Similar ratio
Find third proportional to 45,657 and 94,120.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.